oj.uz

답안 #583574

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
583574 2022-06-25T15:44:18 Z Johann Two Dishes (JOI19_dishes) C++14
5 / 100
 691 ms 26300 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pii pair<ll,ll>
#define vi vector<ll>
#define vpii vector<pii>
#define sz(x) (int) (x).size()
#define all(x) (x).begin(), (x).end()

const ll inf = 1LL << 60;
const int MAXN = 1e6 + 7;
ll N[2];
ll A[2][MAXN],T[2][MAXN],P[2][MAXN];

struct operation {
    ll addopt=0;
    ll maxopt=-inf;
};
struct segtree {
    int size;
    vector<ll> arr;
    vector<operation> opt;
    ll combine(ll ld, ll rd) {
        return max(ld, rd);
    }
    ll calculate(operation o, ll d) {
        return max(o.maxopt, d + o.addopt);
    }
    operation merge(operation ot, operation ob) {
        return { ot.addopt + ob.addopt, max(ot.maxopt, ob.maxopt) };
    }
    segtree(int N) {
        size = 1;
        while (size < N) size *= 2;
        arr.assign(2*size, 0);
        opt.assign(2*size, operation());
    }
    void apply(int x, operation & o) {
        arr[x] = calculate(o, arr[x]);
        if (x < size)
            opt[x] = merge(opt[x], o);
    }
    void push(int x) {
        apply(2 * x, opt[x]);
        apply(2*x+1, opt[x]);
        opt[x] = operation();
    }
    ll query(int l, int r, int x, int lx, int rx) {
        if (l <= lx && rx <= r) { return arr[x]; }
        if (rx <= l || r <= lx) { return -inf; }
        push(x);
        int m = ( lx + rx ) / 2;
        ll lv = query(l, r, 2 * x, lx, m);
        ll rv = query(l, r, 2*x+1, m, rx);
        return combine(lv, rv);
    }
    void apply(int l, int r, operation o, int x, int lx, int rx) { // add or max
        if (l <= lx && rx <= r) { apply(x, o); return; }
        if (rx <= l || r <= lx) { return; }
        push(x);
        int m = ( lx + rx ) / 2;
        apply(l, r, o, 2 * x, lx, m);
        apply(l, r, o, 2*x+1, m, rx);
        arr[x] = combine(arr[2 * x], arr[2*x+1]);
    }
    void apply(int l, int r, operation o) {
        apply(l, r, o, 1, 0, size);
    }
    ll query(int l, int r){
        return query(l, r, 1, 0, size);
    }
};

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    cin >> N[0] >> N[1];
    for (int j = 0; j < 2; ++j) {
        for (int i = 0; i < N[j]; ++i) {
            cin >> A[j][i] >> T[j][i] >> P[j][i];
            if (i > 0) A[j][i] += A[j][i-1]; // A ist eine Präfixsumme
            T[j][i] -= A[j][i]; // Wie viel darf ich vom anderen machen, ich noch Punkte bekomme?
        }
    }

    // Segmentbaum auf N[1] aufgebaut
    segtree seg = segtree(N[1]+1);
    // Index shift bei j um 1!
    // init 0th layer:
    ll points = 0;
    priority_queue<pii, vpii, greater<>> q;
    for (int j = 0; j < N[1]; ++j) {
        if (T[1][j] >= 0) {
            points += P[1][j];
            q.push({
                upper_bound(A[0], A[0] + N[0], T[1][j]) - A[0], j
            });
        }
    }
    seg.apply(0, N[1]+1, { points, -inf });
    // ernst
    for (int i = 0; i < N[0]; ++i) {
        vi cuts;
        while (!q.empty() && q.top().first == i) {
            int j = q.top().second;  q.pop();
            seg.apply(0, j+1, { - P[1][j], -inf });
            cuts.push_back(j+1);
            // for (int i = 0; i <= N[1]; ++i) cout << seg.query(i, i+1) << " "; cout << endl;
        }
        if (T[0][i] >= 0) {
            ll j = upper_bound(A[1], A[1] + N[1], T[0][i]) - A[1];
            seg.apply(0, j+1, { P[0][i], -inf });
            cuts.push_back(j+1);
            // for (int i = 0; i <= N[1]; ++i) cout << seg.query(i, i+1) << " "; cout << endl;
        }
        for (int x : cuts) {
            ll v = seg.query(0, x);
            seg.apply(x, N[1]+1, { 0, v });
            // for (int i = 0; i <= N[1]; ++i) cout << seg.query(i, i+1) << " "; cout << endl;
        }
    }
    cout << seg.query(0, N[1]+1) << "\n";
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 642 ms 26232 KB Output is correct
2 Correct 626 ms 26052 KB Output is correct
3 Correct 323 ms 26200 KB Output is correct
4 Correct 496 ms 24024 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 614 ms 25840 KB Output is correct
7 Correct 84 ms 21576 KB Output is correct
8 Correct 81 ms 5008 KB Output is correct
9 Correct 379 ms 26216 KB Output is correct
10 Correct 691 ms 26244 KB Output is correct
11 Correct 291 ms 26300 KB Output is correct

Subtask #2
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Incorrect 1 ms 340 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #3
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Incorrect 1 ms 340 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #4
0 / 39.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Incorrect 1 ms 340 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Incorrect 1 ms 340 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #6
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Incorrect 1 ms 340 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #7
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 642 ms 26232 KB Output is correct
2 Correct 626 ms 26052 KB Output is correct
3 Correct 323 ms 26200 KB Output is correct
4 Correct 496 ms 24024 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 614 ms 25840 KB Output is correct
7 Correct 84 ms 21576 KB Output is correct
8 Correct 81 ms 5008 KB Output is correct
9 Correct 379 ms 26216 KB Output is correct
10 Correct 691 ms 26244 KB Output is correct
11 Correct 291 ms 26300 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Incorrect 1 ms 340 KB Output isn't correct
25 Halted 0 ms 0 KB -

Subtask #8
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 642 ms 26232 KB Output is correct
2 Correct 626 ms 26052 KB Output is correct
3 Correct 323 ms 26200 KB Output is correct
4 Correct 496 ms 24024 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 614 ms 25840 KB Output is correct
7 Correct 84 ms 21576 KB Output is correct
8 Correct 81 ms 5008 KB Output is correct
9 Correct 379 ms 26216 KB Output is correct
10 Correct 691 ms 26244 KB Output is correct
11 Correct 291 ms 26300 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Incorrect 1 ms 340 KB Output isn't correct
25 Halted 0 ms 0 KB -